In March, Vacaville typically sees daytime highs of 18.4°C and overnight lows around 5.8°C. Compared to the annual average high of 23.0°C, March runs -4.6°C.
March in Vacaville averages a daytime high of 18.4°C and an overnight low of 5.8°C.
March runs -4.6°C compared to Vacaville's annual average high of 23.0°C, ranking #8 of 12 months by warmth.
Plan for daytime highs near 18.4°C and cooler evenings around 5.8°C.